The United States has a long history of fluctuations in gas prices, which are affected by a variety of factors such as global supply and demand, geopolitical events, and domestic policies. While gas prices have generally trended upward over time, there have been periods of significant volatility, including times when gas prices have dropped precipitously. In this article, we will explore when the last time gas was under a dollar in the US and the factors that contributed to this phenomenon.

Gas prices in the US have varied widely over the past century, with prices ranging from as low as $0.10 per gallon in the 1930s to as high as $4.11 per gallon in 2008. However, it is important to note that the purchasing power of a dollar has also changed over time, which can affect the relative cost of gas. For example, a dollar in 1930 had much greater purchasing power than a dollar in 2008, so even though gas was much cheaper in the 1930s, it was still relatively expensive for that time period.
With that caveat in mind, we can still identify several periods in US history when gas prices were particularly low. The first such period occurred in the aftermath of World War II, when the US was experiencing an economic boom and gas was plentiful and cheap. In the late 1940s and early 1950s, gas prices were generally around $0.20 to $0.25 per gallon, which would be equivalent to around $2.50 to $3.00 per gallon in today’s dollars.
Another period of relatively low gas prices occurred in the late 1990s and early 2000s. From 1998 to 2003, gas prices were generally between $1.00 and $1.50 per gallon, with occasional spikes due to geopolitical events such as the 9/11 attacks and the Iraq War. However, even during this period, there were very few instances when gas prices actually dropped below $1.00 per gallon.
The last time gas prices were consistently under a dollar in the US was in the early 1970s, during a period of relative stability in global oil markets. From 1971 to 1973, gas prices were generally around $0.36 to $0.38 per gallon, which would be equivalent to around $2.25 to $2.50 per gallon in today’s dollars. However, in 1973, the global oil market was rocked by the Arab Oil Embargo, which led to a sharp increase in gas prices and widespread shortages in the US.
The Arab Oil Embargo was a political and economic crisis that occurred in 1973 when the Arab members of the Organization of Petroleum Exporting Countries (OPEC) announced an oil embargo against the US and other countries that supported Israel during the Yom Kippur War. The embargo led to a significant reduction in global oil supply and caused gas prices in the US to skyrocket, with prices peaking at around $0.55 to $0.60 per gallon in 1974. The embargo also led to long lines at gas stations and widespread panic about the availability of gas.
Since the 1970s, gas prices in the US have generally trended upward, with occasional dips and spikes due to various factors such as economic recessions, geopolitical events, and changes in domestic policies. However, even during periods of relatively low gas prices, such as the late 1990s and early 2000s, gas prices have rarely dropped below $1.00 per gallon.
In conclusion, the last time gas prices were consistently under a dollar in the US was in the early 1970s, before the Arab Oil Embargo led to a sharp increase in prices and widespread shortages